54 lines
2.7 KiB
JavaScript
54 lines
2.7 KiB
JavaScript
/* Translation lookup and locale-aware formatting. Copy lives in /locales/*.json. */
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(() => {
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const dictionaries = window.LifeOSLocales || {};
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const en = dictionaries.en || {};
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const zh = dictionaries['zh-CN'] || {};
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const PREFERENCE_KEY = 'lifeos_language_preference_v1';
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const validPreference = value => ['auto', 'en', 'zh'].includes(value);
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const lookup = (object, path) => path.split('.').reduce((value, part) => value?.[part], object);
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const detectBrowserLanguage = () => {
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const preferences = navigator.languages?.length ? navigator.languages : [navigator.language || navigator.userLanguage || 'en'];
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return preferences.some(value => String(value).toLowerCase().startsWith('zh')) ? 'zh' : 'en';
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};
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const readPreference = () => {
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try {
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const saved = localStorage.getItem(PREFERENCE_KEY);
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if (validPreference(saved)) return saved;
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let oldSettings = {};
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try { oldSettings = JSON.parse(localStorage.getItem('lifeos_settings') || '{}'); } catch {}
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const legacyMode = oldSettings.languageMode ?? (['en', 'zh'].includes(oldSettings.language) ? 'manual' : 'auto');
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const migrated = legacyMode === 'manual' && ['en', 'zh'].includes(oldSettings.language) ? oldSettings.language : 'auto';
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localStorage.setItem(PREFERENCE_KEY, migrated);
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return migrated;
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} catch { return 'auto'; }
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};
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let preference = readPreference();
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const language = () => preference === 'auto' ? detectBrowserLanguage() : preference;
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function t(key, values = {}) {
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const selected = language() === 'zh' ? zh : en;
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const template = lookup(selected, key) ?? lookup(en, key) ?? key;
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return String(template).replace(/\{(\w+)\}/g, (_, name) => values[name] ?? `{${name}}`);
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}
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function locale() { return language() === 'zh' ? 'zh-CN' : 'en-US'; }
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function date(value, options) {
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const parsed = value instanceof Date ? value : new Date(typeof value === 'string' && /^\d{4}-\d{2}-\d{2}$/.test(value) ? `${value}T12:00:00` : value);
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return new Intl.DateTimeFormat(locale(), options).format(parsed);
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}
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function number(value, options) { return new Intl.NumberFormat(locale(), options).format(value); }
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function setLanguage(value) {
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if (!validPreference(value)) return;
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preference = value;
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try { localStorage.setItem(PREFERENCE_KEY, value); } catch {}
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window.renderIcons?.();
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window.renderAll?.();
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window.applyLanguage?.();
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window.toast?.(value === 'auto' ? (language() === 'zh' ? 'feedback.followingZh' : 'feedback.followingEn') : (value === 'zh' ? 'feedback.languageZh' : 'feedback.languageEn'));
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}
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window.lang = language;
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window.setLanguage = setLanguage;
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window.LifeI18n = { t, date, number, locale, language, preference: () => preference, dictionaries: { en, zh } };
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})();
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